While we can't meet you in person until the health crisis ends, our website in an excellent information resource, and our volunteers are active online.

Have a garden question? Follow these steps:

  1. First, Search our site under Find It Here. That's the fastest way to find researched answers to thousands of garden questions. Results include monthly gardening tips and downloadable gardening guides.
  2. If you don't find your answer, visit our Ask a Master Gardener page and check under the Q&A Categories or use our online form to submit your question. The more details you provide, the easier it will be to diagnose our problem. Note: We are NOT allowed to recommend retailers for plants or products.

Plant identification from a photograph:

This can be challenging, and we can't guarantee we'll be able to ID your plant. Our Ask a Master Gardener page lists requirements. Please follow carefully.

We'll update this notice if things change. Meanwhile, stay safe, and happy gardening.

Mid-month, sow lettuce, radishes, and arugula for the fall crop. Carrots seeded by mid-July will keep in the ground well after the snow flies. ... See MoreSee Less

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Horrors in the Garden ... a great title for this article on some scary plants you may encounter. Poisonous, rash-inducing ... all kinds of risks presented by these plants. ... See MoreSee Less

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Storm aftermath: Heavy summer rains can cause bare garden soil to form a crust. Lightly scratch the soil with a long-handled cultivator to loosen the soil and allow air and moisture to penetrate. Mulch can become matted and should be loosened as well. ... See MoreSee Less

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Use two hands or secateurs when picking peas and beans. The top should come off with the bean/pea, not left on the plant. Pulling them off with one hand may break a branch off the plant or pull the entire plant out of the soil. Pick often to encourage more fruit. ... See MoreSee Less

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Is your garden in last night's "flood zone"? Watch out! Weeds are coming. The combination of lots of moisture followed by heat will cause weed and flower seeds to germinate quickly and prolifically. Pull the weeds and unwanted seedlings as soon as they appear. ... See MoreSee Less

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Pull weeds as they grow and use mulch in your flower beds to prevent them from sprouting. If you can't pull them all, at least cut off their tops to prevent them from seeding; this will mean fewer weeds next year. ... See MoreSee Less

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Some late spring/early summer perennials such as Golden Marguerite, some Shasta Daisies and Artemisia ‘flop ’ or lay down. Cut them down to the crown when the bloom period is over. If done early enough in the summer, the plant will produce new growth. ... See MoreSee Less

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Toronto Master Gardeners

The Toronto Master Gardeners are volunteers committed to providing the public with horticultural information, education and inspiration. The resources and services available through this site are designed to help Toronto residents use safe, effective, proven and sustainable horticultural practices to create gardens, landscapes and communities that are both vibrant and healthy.

Gardening Guides

Our useful Gardening Guides provide introductory information for the home gardener about a broad range of horticultural topics.

Book A Master Gardener

Local organizations can book our volunteers to deliver horticultural presentations, provide question and answer sessions, and staff advice clinics.

Become a Master Gardener

If you’re in Toronto, here’s how to become a Master Gardener:

Ask A Master Gardener

Toronto Master Gardeners are happy to answer your gardening questions posted on this site, called in to our Infoline or asked in person at our scheduled events.

Gardening Tips

Throughout the year, Toronto Master Gardeners post brief gardening tips on this site to help you with your seasonal gardening tasks.


Master Gardeners of Ontario

Compost Council of Canada

Toronto Region Conservation Authority

Toronto Botanical Gardens

City of Toronto

Toronto Public Library

Toronto Master Gardeners Code of Conduct

The Toronto Master Gardeners (TMG) is an organization committed to fostering an environment in which everyone we engage with, including fellow members and the general public, is treated with dignity and respect, regardless of race, national or ethnic origin, colour, age, gender, sexual identity or sexual orientation, religion, political affiliation or abilities. All members are expected to adhere to this principle.

The TMG does not tolerate any form of discrimination, harassment, abuse or bullying.

If you feel that the code of conduct has been breached, please contact the executive coordinator or assistant coordinator, whose contact information can be found here.